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VideoCommon: Fix scissorOffset, handle negative value correctly

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VideoCommon: Change the type of BPMemory.scissorOffset to 10bit signed: S32X10Y10
VideoBackends: Fix Software Clipper.PerspectiveDivide function, use BPMemory.scissorOffset instead of hard code 342
This commit is contained in:
ezio1900
2021-04-19 20:20:37 +08:00
parent 34348fad1d
commit 97ea3a603e
5 changed files with 51 additions and 33 deletions
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24
Source/Core/VideoCommon/BPStructs.cpp
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@ -217,14 +217,14 @@ static void BPWritten(const BPCmd& bp)
u32 destAddr = bpmem.copyTexDest << 5;
u32 destStride = bpmem.copyMipMapStrideChannels << 5;
MathUtil::Rectangle<int> srcRect;
srcRect.left = static_cast<int>(bpmem.copyTexSrcXY.x);
srcRect.top = static_cast<int>(bpmem.copyTexSrcXY.y);
MathUtil::Rectangle<s32> srcRect;
srcRect.left = bpmem.copyTexSrcXY.x;
srcRect.top = bpmem.copyTexSrcXY.y;
// Here Width+1 like Height, otherwise some textures are corrupted already since the native
// resolution.
srcRect.right = static_cast<int>(bpmem.copyTexSrcXY.x + bpmem.copyTexSrcWH.x + 1);
srcRect.bottom = static_cast<int>(bpmem.copyTexSrcXY.y + bpmem.copyTexSrcWH.y + 1);
srcRect.right = bpmem.copyTexSrcXY.x + bpmem.copyTexSrcWH.x + 1;
srcRect.bottom = bpmem.copyTexSrcXY.y + bpmem.copyTexSrcWH.y + 1;
// Since the copy X and Y coordinates/sizes are 10-bit, the game can configure a copy region up
// to 1024x1024. Hardware tests have found that the number of bytes written does not depend on
@ -238,21 +238,21 @@ static void BPWritten(const BPCmd& bp)
// writing the junk data, we don't write anything to RAM at all for over-sized copies, and clamp
// to the EFB borders for over-offset copies. The arcade virtual console games (e.g. 1942) are
// known for configuring these out-of-range copies.
int copy_width = srcRect.GetWidth();
int copy_height = srcRect.GetHeight();
if (srcRect.right > s32(EFB_WIDTH) || srcRect.bottom > s32(EFB_HEIGHT))
u32 copy_width = srcRect.GetWidth();
u32 copy_height = srcRect.GetHeight();
if (srcRect.right > EFB_WIDTH || srcRect.bottom > EFB_HEIGHT)
{
WARN_LOG_FMT(VIDEO, "Oversized EFB copy: {}x{} (offset {},{} stride {})", copy_width,
copy_height, srcRect.left, srcRect.top, destStride);
// Adjust the copy size to fit within the EFB. So that we don't end up with a stretched image,
// instead of clamping the source rectangle, we reduce it by the over-sized amount.
if (copy_width > s32(EFB_WIDTH))
if (copy_width > EFB_WIDTH)
{
srcRect.right -= copy_width - EFB_WIDTH;
copy_width = EFB_WIDTH;
}
if (copy_height > s32(EFB_HEIGHT))
if (copy_height > EFB_HEIGHT)
{
srcRect.bottom -= copy_height - EFB_HEIGHT;
copy_height = EFB_HEIGHT;
@ -1010,8 +1010,8 @@ std::pair<std::string, std::string> GetBPRegInfo(u8 cmd, u32 cmddata)
case BPMEM_SCISSOROFFSET: // 0x59
{
const X10Y10 xy{.hex = cmddata};
return std::make_pair(RegName(BPMEM_EFB_TL),
const S32X10Y10 xy{.hex = cmddata};
return std::make_pair(RegName(BPMEM_SCISSOROFFSET),
fmt::format("Scissor X offset: {}\nScissor Y offset: {}", xy.x, xy.y));
}